The Sokkia iM-55 PSBL (model 1023563-01) is a professional-grade, 5-second angular accuracy total station engineered for surveyors, civil engineers, and construction layout crews who demand reliable, repeatable measurements in the field. Featuring integrated Bluetooth wireless connectivity, a single-display configuration, and an optical plummet for precise setup over control points, the iM-55 PSBL delivers the performance needed for boundary surveys, topographic mapping, and construction stakeout — without the added complexity or cost of robotic dual-display systems.
Overview & Jobsite Applications
Designed for the demanding realities of everyday fieldwork, the Sokkia iM-55 PSBL combines Sokkia's proven optical and electronic engineering with modern wireless data transfer. The Bluetooth connection enables seamless communication with data collectors, tablets, and field software — eliminating manual data entry errors and streamlining your workflow from field to office. Whether you're running a boundary retracement, setting construction stakes for a road project, or collecting topo points for a grading plan, the iM-55 PSBL provides the accuracy and dependability that professional crews expect from Sokkia equipment.
Key Specifications
- Angular Accuracy: 5 seconds (1.5 mgon)
- Telescope Magnification: 30x
- Minimum Focus Distance: 1.3 m (4.3 ft)
- EDM Range (Single Prism): Up to 4,000 m (13,120 ft)
- EDM Range (Reflectorless): Up to 500 m (1,640 ft)
- Distance Accuracy: (2 + 2 ppm x D) mm
- Display: Single-sided alphanumeric LCD
- Wireless: Bluetooth Class 1
- Plummet Type: Optical plummet
- Operating Temperature: -20°C to +50°C (-4°F to +122°F)
- Battery Life: Approximately 9 hours (BDC70)
- Dust & Water Protection: IP54
- Weight: Approximately 5.2 kg (11.5 lbs) with battery
Key Features
- 5-second angular accuracy for professional boundary and construction work
- Integrated Bluetooth for wireless data transfer to field controllers and software
- Reflectorless EDM for measuring to inaccessible surfaces up to 500 m
- 30x magnification telescope for clear target acquisition at distance
- Optical plummet for accurate instrument centering over control points
- IP54-rated dust and splash resistance for reliable field performance
- Single-display design for straightforward, efficient solo operation
- Compatible with Sokkia SDR software and major third-party field data collectors
- Long battery life (~9 hours) to support full-day field operations
Job Applications
Boundary & Topographic Surveys: The iM-55 PSBL's 5-second accuracy meets the angular precision requirements for most boundary retracements, property surveys, and topo data collection projects. Bluetooth connectivity lets you push measurements directly to your data collector or laptop without cables.
Construction Layout & Stakeout: Set horizontal and vertical control, stake building corners, grade breaks, and utility alignments with confidence. The reflectorless EDM is especially useful for measuring to concrete forms, structural steel, and other targets where prism placement isn't practical.
Road & Site Grading Projects: Whether you're working on a subdivision, commercial pad, or roadway alignment, the iM-55 PSBL handles the repetitive angle and distance measurements that grading and layout crews need throughout the project lifecycle.
As-Built & Verification Surveys: Use the iM-55 PSBL to document as-built conditions on structures, utilities, and earthwork, providing the accurate coordinate data your engineers and project owners need for record drawings and quantity verification.
Compatible Accessories
- Sokkia BDC70 Rechargeable Battery
- Sokkia CDC68A Battery Charger
- Sokkia Tribrach with Optical Plummet
- Sokkia Mini Prism Set
- Sokkia Single Prism Assembly
- Heavy-Duty Aluminum Tripod for Total Stations
Related Guides
- How to Set Up a Total Station on a Control Point
- Choosing the Right Total Station for Your Survey Crew
- Bluetooth Data Transfer: Connecting Your Total Station to a Field Controller
- Total Station Maintenance Tips for Extending Instrument Life
Frequently Asked Questions
- Does the Sokkia iM-55 PSBL work with third-party data collectors?
- Yes. The iM-55 PSBL communicates via Bluetooth Class 1 and is compatible with most major field data collectors and survey software platforms, including Carlson SurvCE/SurvPC, Trimble Access, and others that support standard total station communication protocols. Check with your software provider to confirm compatibility with your specific controller.
- What is the difference between the PSBL and other iM-55 configurations?
- The "PSBL" designation indicates this unit is configured with a single display (P = single panel), Bluetooth wireless connectivity (BL = Bluetooth). Other iM-55 configurations may include dual displays, laser plummets, or different wireless options. The PSBL is optimized for crew efficiency when the instrument operator is the primary user interfacing with the instrument.
- What EDM range can I expect in reflectorless mode?
- The iM-55 PSBL's reflectorless EDM is rated up to 500 m (1,640 ft) under good conditions to a standard Kodak Gray Card target. Actual range will vary depending on target surface reflectivity, ambient light conditions, and atmospheric interference. For prism-based measurements, the range extends to 4,000 m with a single prism.
- Is the Sokkia iM-55 PSBL covered under a warranty?
- Yes. As an authorized Sokkia dealer, Express Tools sells the iM-55 PSBL with the full manufacturer's warranty. Sokkia instruments are backed by their standard warranty program covering defects in materials and workmanship. Contact Express Tools for specific warranty terms or to arrange factory-authorized service if needed.
Frequently Asked Questions
Does the Sokkia iM-55 PSBL work with third-party data collectors?
Yes. The iM-55 PSBL communicates via Bluetooth Class 1 and is compatible with most major field data collectors and survey software platforms, including Carlson SurvCE/SurvPC, Trimble Access, and others that support standard total station communication protocols. Check with your software provider to confirm compatibility with your specific controller.
What is the difference between the PSBL and other iM-55 configurations?
The "PSBL" designation indicates this unit is configured with a single display and Bluetooth wireless connectivity. Other iM-55 configurations may include dual displays, laser plummets, or different wireless options. The PSBL is optimized for crew efficiency when the instrument operator is the primary user interfacing with the instrument.
What EDM range can I expect in reflectorless mode?
The iM-55 PSBL's reflectorless EDM is rated up to 500 m (1,640 ft) under good conditions to a standard Kodak Gray Card target. Actual range will vary depending on target surface reflectivity, ambient light conditions, and atmospheric interference. For prism-based measurements, the range extends to 4,000 m with a single prism.
Is the Sokkia iM-55 PSBL covered under a warranty?
Yes. As an authorized Sokkia dealer, Express Tools sells the iM-55 PSBL with the full manufacturer's warranty. Sokkia instruments are backed by their standard warranty program covering defects in materials and workmanship. Contact Express Tools for specific warranty terms or to arrange factory-authorized service if needed.
